Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders (multi-stage pumps specially adapted for elastic fluids F04B25/00)

Child Classifications

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• F04B 27/005
• F04B 27/02 having cylinders arranged oppositely relative to main shaft
• F04B 27/04 having cylinders in star- or fan-arrangement
• F04B 27/08 having cylinders coaxial with, or parallel or inclined to, main shaft axis
• F04B 27/24 Control not provided for in a single group of groups F04B27/02 - F04B27/22